Troubleshooting
If there is a problem, try the following suggestions. If the problem cannot be solved,
contact your equipment supplier or ResMed. Do not attempt to open the device.
Problem/Possible Cause
No display
Power is not connected.
Insufficient air delivered from S8 Series II device
Ramp or settling time is in use.
Air filter is dirty.
Air tubing is kinked or
punctured.
Air tubing not connected
properly.
Mask and headgear not
positioned correctly.
Cap(s) missing from access
port on mask.
Pressure required for
treatment may have changed.
Device does not start when you breathe into the mask although your clinician has
enabled SmartStart.
Power cord not connected
properly.
Power outlet may be faulty.
Leak Alert has been enabled
by your clinician; SmartStart
automatically disabled.
Use of a ResMed Full Face
mask.
Breath not deep enough to
trigger SmartStart.
Excessive leak.
Ensure the power cable is connected and the power
switch (if available) is on.
Wait for air pressure to build up or change ramp or
settling time.
Replace air filter.
Straighten or replace tubing.
Check air tubing.
Adjust position of mask and headgear.
Replace cap(s).
See your clinician to adjust the pressure.
Connect power cord firmly at both ends.
Try another power outlet.
Contact your clinician.
SmartStart does not work with a full-face mask as the
anti-asphyxia valve will not allow sufficiently high
pressure on exhalation.
Take a deep breath in and out through the mask.
Adjust position of mask and headgear.
Replace caps if missing from ports on mask.
Air tubing may not be connected properly. Connect firmly
at both ends.
Air tubing may be kinked or punctured. Straighten or
replace.
Solution
Troubleshooting
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